One of my sparring partners and also a good friend needs to buy some racquets. His beloved Wilson HPS 6.1 are old and broken. He's an allcourt player. He's getting older soo he wants a slighty bigger frame (98 or 100) and lighter racquet (between 310g and 330g) soo he talked me about that. I offered him some of my head extreme pros for him to test and he liked it. But he's in doubt between my Extreme Pro and some Liquidmetal Rads MP. The fact of the extremes being more expensive is not a issue he said. They're close in weight but different headsizes and different stiffness... What is difference between the playability between these two? Which would you choose?